Island



1 E. WALCOTT.

Gas Retort.

Patented June 21, 1 859.

UNITED STATES PATENT OFFICE.

EDWARD WALCOTT, OF PROVIDENCE, RHODE ISLAND.

G-AS-RETORT.

Specification of Letters Patent No. 24,510, dated June 21, 1859.

To all whom it may concern:

Be it known that I, EDWARD VVALoo'rT, of Providence, in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Gas-Retorts; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the annexed drawings, making apart of this specification,in which,-

Figure 1 exhibits a central vertical section of the front portion of aretort and mouthpiece attached with my improvements. Fig. 2 exhibits ahorizontal section of the retort, and mouth piece attached, and a topview of the lid and the means of securing it.

Similar letters of reference denote like parts in both figures.

To enable others skilled in the art, to make and use my invention, Iwill proceed to describe its construction and operation.

A, is the body of the retort, which may be of the 'D or any other shapein its transverse section; and B, is the mouthpiece constructed andattached in the usual manner to the body, but made shorter than usual soas not to project so far from the furnace or bench, so as to present assmall an area of exposed surface to the atmosphere as possible.

C, is the socket cast with the mouthpiece to receive the stand pipe.

D, is the lid of the mouth piece which, instead of consisting of a mereplate like those in common use, is made with an internal projectingpiece a, a, b, Z), of a form to enter the mouthpiece B and present aninclined plane a, 64, extending all across the mouthpiece, commencing atthe extreme top and front thereof, and extending downward and backwardto or beyond the back thereof, forming an angular space between theinner and outer plate or surface of the lid and the bottom of themouth-piece, from which the gas is excluded by luting the parts of thelid which press against the mouthpiece as is usual in fastening lids ofretorts. This internal projecting piece obviously prevents thecollection of tar in the bottom of the mouth-piece, and serves toconduct back into the retort, to be decomposed, any tar that may descendupon it from the stand-pipe, while it in no way interferes with theescape of the gas from the retort into the pipe, and on being withdrawnfrom the mouth piece, leaves the bottom of the mouth-piece perfectlyclean, so that the burning coke may be at once withdrawn withoutannoyance from burning tar.

I, I, are handles on the exterior of the lid, one above and the otherbelow the cross bar F, for taking hold of to put the lid in place andremove it from the mouth piece.

E, E, are two hooks or slotted lugs secured to the sides of the front ofthe mouth-piece B, for lid D to rest upon.

F, is ahorizontal cross bar passing through said hooks or lugs; and G,is an eccentric or cam attached'to said cross bar by a vertical pin (Z,and having attached a lever H, by which it is turned in one direction tomake it press against the center of the lid D, to force the same closeup to the mouth of the retort, or in the other direction to liberate andpermit the removal of the cross bar and the subsequent removal of thelid. This combination of the cam and cross-bar constitute a cheaper andmore handy means of securing and liberating the lid than the screwattachment in common use.

What I claim as my invention and desire to secure by Letters Patent, is:

1. The combination with the lid D, of the projecting incline plane a, a,substantially as and for the purposes herein set forth and described.

2. The employment, for securing the lid of the mouth piece of the retortin place, of a horizontal eccentric or cam G, and lever H, attached toand combined with a crossbar F, and applied to the mouthpiece of theretort substantially as herein described.

EDVV. VVALCOTT.

Witnesses:

A. B. SLATER, J AMINGTON FASTER.

